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fections, and others. Along <strong>with</strong> serotonin and dopamine,<br />
other neurotransmitters, such as noreprinephrine and<br />
GABA, are theorized by some to associate <strong>with</strong> OCD. Additionally,<br />
some believe that circumstances of a brain substance<br />
called endo-cannabinoid, or the receptors associated<br />
<strong>with</strong> this may be a consideration.<br />
How can one know?<br />
Considering the variety of issues and elements involved,<br />
it is easy to see why professionals are unable to decide the<br />
true cause of OCD. Perhaps there isn't just one cause, but<br />
many, just as lung cancer is not only caused by smoking.<br />
Perhaps it is a combination of circumstances. One thing is<br />
certain: No one knows why a particular person has OCD,<br />
they can only theorize.<br />
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